Table 1.

Heatwave and non-heatwave years in East Asia (HWY-EA and NHWY-EA) were defined by the ± 0.8 standard deviation thresholds of the HWD with the trend and detrended HWD, respectively.

Thresholds: ± 0.8 sigma of HWD		Number of years
HWY-EA (with trend)	1994, 2003, 2010, 2013, 2016, 2017, 2018, 2019	8
NHWY-EA (with trend)	1979, 1980, 1982, 1984, 1986, 1987, 1993, 1996	8
HWY-EA (detrended)	1988, 1990, 1992, 1994, 2003, 2010, 2013, 2016, 2017	9
NHWY-EA (detrended)	1993, 1996, 2008, 2012, 2014, 2015, 2020	7